Built-in downlights of the BLIZZARD series with a power of 6 W will ideally fit into the interior of a residential apartment, as well as a small cafe or hotel room. The aluminum case smoothly expands towards the base, as if merging with the ceiling surface. The diffuser is located deep inside the body of the lamp, which guarantees the absence of a sharp blinding glow. The high color rendering index (CRI>90) provides an almost natural perception of colors and shades of surrounding objects.

Dimensions: Ø90×61 mm
Installation Hole Diameter: Ø75mm
Color temperature: 3000, 4000K
Luminous flux: 390, 420, 490, 520 lm
Beam Angle: 100°
Color rendering index: CRI>90
Degree of dust and moisture protection: IP20
Power Consumption: 6W
Supply voltage: 230 V
Body color: black, white

https://arlight.ru/search/index.php?q=MS-BLIZZARD-BUILT-R90-6W 

“Those who work in V-Ray versions lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR ( GGX ), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whichever suits you best"